SH146 Subregional Study

About the Project

State Highway 146 (SH 146) is an important regional corridor which serves as a major north-south thoroughfare, a freight route, and a hurricane evacuation route. The area surrounding SH 146 is a rapidly growing part of the greater Houston-Galveston region in terms of population, employment and freight traffic. In order to coordinate transportation planning efforts undertaken by local agencies to accommodate this growth, elected officials asked the Houston-Galveston Area Council (H-GAC) to establish a partnership with the Texas Department of Transportation (TxDOT) and the cities of Baytown and Mont Belvieu, to collaboratively examine current and future mobility needs.

The purpose of the study is to identify recommendations to improve mobility and access to jobs, homes and services in the SH 146 study area (Figure 1). The year-long study will analyze current and future population, employment, and economic development conditions. An extensive traffic data collection effort will examine the roadway network and identify existing traffic bottlenecks and roadway facilities with high congestion levels or potentially unsafe conditions.

The SH 146 Subregional Study will ultimately outline short, intermediate, and long-term transportation improvements to increase safety and traffic flow, reduce congestion, improve air quality, incorporate multi-modal mobility solutions, and enhance the aesthetics of the highway.


The vision of the SH 146 Subregional Plan is to improve mobility and safety of the roadway network for all users.


The SH 146 Subregional study will develop short and long term innovative and actionable transportation strategies through a combination of physical, operational and regulatory measures.

The recommendations will:

  • Enhance safety by addressing the needs of all users
  • Mitigate Congestion
  • Enhance Streetscapes
  • Address commercial vehicle issues
  • Mitigate mobility barriers
  • Increase connectivity for all modes of transportation
  • Engage the public in decision making process


Figure 1. Map of Study Area


More Information

For more information, contact: Carlene Mullins,